struct S1 {}
func foo1(a: S1) {}
class C1 {}
func foo2(c : C1) {}
enum new_e1 {}
func foo3(e : new_e1) {}
func foo4(a : S1, b : C1, c: new_e1) { foo4(a: a, b: b, c :c) }

func test() {
  struct SLocal {
    init(x: S1) {}
  }
  func local(a: SLocal) {}
  local(a: SLocal(x: S1()))
}

guard let top = Optional.some("top") else {
  fatalError()
}
print(top)